Sunk on 7 August 1943 in the North Atlantic south-west of Bermuda, in position 27.55N, 68.30W, by a Fido homing torpedo from a US Liberator aircraft (VB-105 USN/B-4). 46 dead (all hands lost). (Axel Niestlé, February 2002).

Sunk 24 Aug, 1943 in the middle of the North Atlantic, in position 27.09N, 37.03W, by aerial torpedoes from aircraft of the US escort carrier USS Core. (Postwar assessment)Notes. U-84 was ordered to refuel from U-760 on 18 August in position 37.00N, 44.30W which is over 600 nautical miles from the attack by USS Core's aircraft.

There was another U-84 in World War OneThat boat was launched from its shipyard on 22 Jul 1916 and commissioned into the Imperial Navy on 7 Oct 1916. The Naval war in WWI was brought to an end with the Armistice signed on 11 Nov, 1918. Read about SM U 84 during WWI.